does anybody know about these accidentals?

[Werner LEMBERG]

> we wonder about the origin of the following two characters:
> 
>   𝄲 U+1D132 MUSICAL SYMBOL QUARTER TONE SHARP
>   𝄳 U+1D133 MUSICAL SYMBOL QUARTER TONE FLAT
> 
> The original proposal to encode them in Unicode is
> https://unicode.org/L2/L1998/98045.pdf – alas, the contained scans
> don't cover those two characters, and I don't have access to the cited
> books.

Well, thanks to the internet I was able to actually check the cited
references (Read, Heussenstamm, Rastall, Stone), and *none* of them
actually contain these accidentals!

Sigh.  Does anybody have an e-mail address of the proposal's author,
Perry Roland?  Maybe he can remember...


    Werner